510results about How to "Guaranteed persistence" patented technology

The invention discloses a data disaster tolerant system which is applicable to a wide area network, pertains to the technical filed of computer information storage and solves the problem that the current data disaster tolerant system does not take the effect of data transmission links and the need of lots of redundant data storage space in the wide area network into consideration. The system of the invention comprises M local storage clients connected to the wide area network and N storage servers in different geographical positions; every local storage client consists of a web manager, a snap module, a mapping file redundant array module, a compression module, a decompression module, an encryption module, a decryption module, a backup distribution module and a recovery and integration module; the storage server consists of a failure detection module, a distributed arbitration module, a recovery module, a distributed copy service module, a backup and recovery service module. The system of the invention combines disaster tolerant coding and copying, reduces the amount of redundant data and effectively utilizes storage space. Meanwhile, data to be transmitted is compressed and encrypted, thus improving the safety and reliability of data on network transmission, effectively utilizing network bandwidth and reaching excellent disaster tolerant effect.

The invention discloses an HBase (hadoop database) data usability and durability method based on remote log backup. The method is characterized in that when a data node of the HBase is written, the log record is first encapsulated through a distributive system, the log is backed up to a preliminarily-designated remote node through a network, the usability and durability of the data can be guaranteed, on the basis of the data, a great amount of user data and log record are temporarily stored in a memory, and the data persisting process in the data processing process is reduced; when the data node of the HBase is idle, the data in the memory is persisted to a file system, the storage pressure of the memory can be alleviated, the frequency of the persistence process in the writing process can be reduced, and the data writing time performance can be improved. By adopting the method, the usability and durability of the data can be guaranteed, the data writing speed can be greatly increased, and the system performance is improved.

The invention discloses a method for preparing an organic silicon graft modified polyurethane resin for synthetic leather. The method comprises the following step: polymerizing a chain extender, diisocyanate, a polymer polyhydric alcohol, micromolecule polyhydric alcohol and an organic metal catalyst in an organic solvent at 50-100 DEG C, wherein organic silicon of which one end contains two hydroxide radicals and the other end contains no active hydroxide radical is adopted as the chain extender. In the process that the grafted organic silicon modified resin is filmed, organic silicon chain segments are connected with a polyurethane structure through covalent bonds, the organic silicon chain segments are enriched on the surface of a coating, the water contact angle of the surface of the obtained coating is improved, the surface of the coating is smooth in hand feeling and bright in gloss, the properties of the surface of the coating are long-lasting and are hard to damage by mechanical and washing action, and thus the resin is an excellent and long-lasting synthetic leather surface treatment material.

A route device of clustering and self-organizing type consists of ARM controller, audio pressing chip, SD card interface, PCMCIA/USB radio network card interface, power supply, storage, Ethernet interface, debugging interface, reset circuit, SMC interface and functional extension interface. Its routing method is also disclosed.

The invention discloses a method and a system for processing data in real time. The method comprises receiving data in real time and putting the data into a queue, reading the data in the queue circularly and putting the read data into a cache, determining whether the time of reading data from the queue exceeds a preset time threshold, and if so, aggregating the data in the cache and persisting the aggregated data. According to the method and the system for processing data in real time, the time threshold is preset; when the queue data are processed, jumping out of the cycle of the processing queue is carried out at a fixed time interval, and therefore, regular persistence can be guaranteed, the data of the same dimensionality can be aggregated as less as possibly, the contradictory relation of the persistence pressure, the persistence period and the aggregation effect can be balanced, and various negative effects due to large data size or different speeds of data going in and out of the queue can be avoided.

Disclosed are a paper-plastic glue and its preparing method,comprising of high polymer latex 70-90%,resin 5-15%,inorganic powder filler 3-15%,dispersant 0.5-0.8%,thickener 0.2-0.5% and deformer 0.1-0.3%. Its preparing method is:1.pre the deformer with high polymer latex; 2. disperse; 3. add into inorganic filler and disperse;4.add into resin and disperse;5. add into thickener for adjusting the viscosity to be the construction one,the output and package the material.

The invention discloses a method for cultivating a breeding material with broad spectrum and lasting spike blast resistance, belonging to the technical field of rice molecular breeding. The method is characterized in that with a parent of conventional rice or hybrid rice with large production extension area and excellent comprehensive characters as a recurrent parent, broad-spectrum anti-disease genes, Pigm and Pi54, are polymerized in the breeding material through continuous backcross and convergent cross and with combination of marker-assisted selection; meanwhile, representative strains are selected for performing artificial inoculation identification of spike blast, natural inducedidentification in rice blast serious areas and basic agronomic character evaluation during a total growth period, and an advanced line with excellent spike blast resistance is obtained. The agronomic characters of the advanced line bred through the method are similar to or consistent with those of the recurrent parent, and the broad spectrum and lasting resistance to spike blast is enhanced obviously.

The invention discloses a logging curve prediction method based on modal decomposition reconstruction and a depth LSTM-RNN model. The logging curve prediction method comprises the steps: utilizing CEEMD to decompose logging curve data into limited intrinsic mode function IMF components and residual RES components which have local characteristics and are different in frequency; carrying out fluctuation degree detection on each component by a run-length detection method, and reconstructing CEEMD decomposition items with similar fluctuation frequencies into three new components with typical characteristics, namely a high-frequency item, a low-frequency item and a trend item; performing data normalization processing on the reconstructed new component and dividing training and test data; respectively establishing a depth LSTM-RNN model for each component and carrying out network training by utilizing the training data; and using the trained model to predict a missing or distorted logging curve, and finally reconstructing and reversely normalizing prediction results of the three components to obtain a logging curve prediction result. According to the logging curve prediction method, thenumber of prediction component modeling is reduced, and the prediction precision and speed are improved, and the simplicity and practicability are high, and the missing or distorted logging curve canbe predicted more accurately and effectively.

The invention discloses an urban rail short-time passenger flow prediction method based on modal decomposition and deep learning. The urban rail short-time passenger flow prediction method comprises aCEEMDAN decomposition stage and a Fine-to-Colarse reconstruction stage and a GRU prediction stage. The invention provides an urban rail transit short-time traffic flow prediction model integrating aCEEMDAN and a GRU. The advantages of two models are fully combined, the CEEMDAN is utilized to decompose original passenger flow data into limited IMFs with local characteristics and different frequencies and allowances, so that the non-stable and non-linear characteristics of the data are obtained, and Fine-to-Colarse reconstruction method is introduced. The method comprises the following steps:reconstructing the IMFs by using a code reconstruction method; a decomposition result is reconstructed into a high-frequency item, a low-frequency item and a trend item, data information is fully reserved while the IMFs dimension is reduced, and finally the IMFs dimension is used as input of a GRU model to obtain time sequence characteristics of data and predict urban rail transit short-time traffic flow.

The invention discloses a data source movement handling method applied to the Information Centric Center (ICN), a message forwarding method and its device. The data source movement handling method comprises the following steps: when a target container enters a second container through a first container, route of the target container is registered in the second container; when the target container enters the second container through the first container, the target container communicates with an analytic system such that the analytic system updates an access container of the target container to the second container through the first container; and when the target container moves inside the first container, route of the target container in the first container is updated through the communication between the target container and the first container. According to the data source movement handling method provided by the embodiment of the invention, data resource movement is supported while frequent and tedious routing update will not be introduced. In addition, content name of content cannot be changed so as to maintain durability of the content name. Thus, feasibility of the ICN framework is enhanced, and user experience is raised.

The invention discloses a hydraulic system for realizing sanitation truck sweeper brush/suction nozzle floating. The hydraulic system comprises a hydraulic gear pump, a stacked pressure reducing valve, a PB valve plate, a two-position four-way reversing valve, a stacked unidirectional throttle valve, a unidirectional throttle valve, a two-position two-way valve, a sweeper brush oil cylinder, a suction nozzle oil cylinder and a hydraulic oil tank, wherein an oil outlet of the pump is respectively connected with a p1 port of the stacked pressure reducing valve and a P port of the two-position four-way valve; a B port of the PB valve plate is connected with a p2 port of the stacked pressure reducing valve; a P port of the PB valve plate is connected with a T port of the two-position four-way valve; an A port of the PB valve plate and an oil discharge port of the stacked pressure reducing valve are connected with an oil return box; an A port of the two-position four-way valve is connected with the stacked unidirectional throttle valve; the other oil port of the stacked unidirectional throttle valve is connected with the unidirectional throttle valve; the other oil port of the unidirectional throttle valve is connected with one port of the two-position two-way valve; the other port of the two-position two-way valve is connected with a rod cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder; a rod-free cavity of the sweeper brush oil cylinder/ the suction nozzle oil cylinder is connected with the hydraulic oil tank. The hydraulic system enables the sanitation truck sweeper brush/suction nozzle floating effect to be good, and sweeper brush and suction nozzle rolling wheels are prevented from being abraded quickly.

The invention discloses a polyurethane elastic fiber finishing agent, comprising the following components in parts by weight: 75.0-98.8 parts of at least one substrate selected from silicon oil and white mineral oil, 1.0-10.0 parts of isomerous high-carbon alcohol, 0.1-10.0 parts of MQ silicon resin of which the pour point is smaller than or equal to 100 DEG C and 0.1-5.0 parts of trisiloxane polyether organic phosphate. The finishing agent enables the polyurethane elastic fiber to have favorable antistatic property, lubricating property and grating balancing property in the filament reeling process, so that the polyurethane elastic fibers reeling at high speed have stable tension and do not skid or cause the filament roller to mess up, thereby endowing the polyurethane elastic fibers withfavorable reeling property. The finishing agent also enables the polyurethane elastic fibers rolled on the roller to have enduring anti-adhesion insulation property, so that the polyurethane elasticfibers have favorable cocoon reelability and thorough root unreeling property in the downstream unreeling process, thereby endowing the polyurethane elastic fibers with favorable unreeling property.

The invention relates to a publishing method of a digital television targeted advisement, a system, and a digital television terminal. The method comprises the following steps of: issuing the advisement by a digital television head terminal; receiving the advisement at the digital television terminal and implementing the following steps of; collecting user data from the digital television terminal on the basis of data collecting rules; utilizing the collected user data to generate statistical conclusions related to user behaviors on the basis of data mining rules; applying the statistical conclusions in preset decision rules for screening the advisement; and displaying the screened advisement. Compared with the conventional targeted advisement publishing method, the method can publish the advisement more accurately and intelligently.

The invention discloses a Taq DNA polymerase monoclonal antibody combination as well as a reaction system and application thereof. The invention firstly discloses the Taq DNA polymerase monoclonal antibody combination. The combination comprises a monoclonal antibody 4A8 and a monoclonal antibody 9B7. The invention further discloses application of the antibody combination in reducing non-specific amplification of Taq DNA polymerase and/or ensuring thermal stability of Taq DNA polymerase, and a reaction system and a kit containing the antibody combination. The antibody combination and the optimized reaction solution can fully seal the active region of Taq DNA polymerase under the condition of low temperature, effectively reduce non-specific amplification and ensure the thermal stability of the enzyme, and can still effectively maintain the durability of the enzyme activity under the condition of higher amplification cycle number.

The invention relates to the technology of macromolecular separation membrane, especially to a composite membrane with a hydrophilic separation layer. The separation layer of the composite membrane of the invention is prepared according to the following steps: preparing a separation layer on a porous supporting membrane by adopting an interfacial polymerizing method. According to the invention, an aqueous-phase reaction liquid used in the preparation process contains polyamine containing ethereal oxygen groups. The separation layer prepared according to the method disclosed by the invention has long-term stable hydrophilic properties, so that the separation layer can be used in processes such as nanometer-filtration, reverse osmosis, osmosis gasification and positive osmosis.

The invention discloses an anti-attrition spacer capable of reducing frictional abnormal sound and an application of the anti-attrition spacer and belongs to the field of mechanical parts. The anti-attrition spacer takes a low-carbon alloy cold-rolled sheet as a base body, and carbonitriding thermal treatment and surface coating treatment of a polyfluorocomplex and/or a nylon 11 coating are successively performed on the low-carbon alloy cold-rolled sheet. The adhesive force between the coating and the base body in the anti-attrition spacer provided by the invention is large, and the coating has excellent anti-attrition effect and wear-resistant effect. The anti-attrition spacer is used between contact surfaces which rub with each other. With prolonging of frictional time, the coating on the anti-attrition spacer does not fall off, so that the durability of the anti-attrition spacer is ensured, the frictional coefficient between the anti-attrition spacer and the contact surfaces is effectively reduced, and the adhesive wear is reduced, and therefore, the frictional abnormal sound is further reduced. In particular, the anti-attrition spacer used in the field of automobiles can effectively relieve the frictional abnormal sound generated between the end face of a universal joint at the fixed end of a driving shaft and a contact surface of a hub bearing of an automobile.

The present invention relates to a security protocol based on received signal intensity in a wireless sensor network, specifically to secure routing and key management. According to the number of adjacent nodes, the intensity of received signals and the energy value thereof, a convergent node is selected by a convergent node selection equation. According to the number of the adjacent nodes and the throughput of the convergent node, a hot zone is determined by a hot zone selection equation. By comparing the feature similarity between collected data and pre-stored abnormal data, abnormal data is detected. An inter-node session key is generated dynamically, and according to whether a hot zone is determined, different keys are selected to generate a function. The key and data are encrypted in a manner of combining a public key cipher mechanism and a symmetric cipher mechanism. The security protocol improves flexibility of a key, enhances the rationality for selecting a convergent node and well ensures safe transmission of inter-node data.

The invention relates to a routing method realized on a basis of a content attribute part of a name in a content-centric networking. The method comprises the steps that a content consumer checks the name of a to-be-sent interest packet, and determines the content of the interest packet according to the information contained in the name of the interest packet; according to the attribute of the content and the distribution probabilities of the content in all areas, the content consumer sends the interest packet to an area with the highest content distribution probability; after receiving the interest packet, a node in the area checks the name of the received interest packet, and performs matching according to the name of the interest packet; and if getting no response, the content consumer sends the interest packet to another area with the second highest content distribution probability, and then the previous step is performed until the interest packet is sent successfully or an end condition is met.

The invention provides a method for automatically obtaining short text of the knowledge domain from a community question-and-answer website.Question-and-answer web pages and author web pages of each subject of the domain corresponding to the knowledge domain can be crawled from the community question-and-answer website, a system with comprehensive data is obtained, and learning and using of a user are convenient.The method comprises the following steps that 1, a Web page of the knowledge domain in the community question-and-answer website is crawled; 2, short text, with concentrated web page data, of the knowledge domain is extracted; 3, a domain subject tree is constructed; 4, storing of the domain subject tree is conducted.By means of the method, the short text of the knowledge domain can be automatically extracted from semi-structured data of the community question-and-answer website, the question-and-answer web pages and the author web pages of each subject of the domain corresponding to the knowledge domain are crawled from the community question-and-answer website, a web page data set of the knowledge domain is constructed, the short text of the knowledge domain is automatically extracted from the web page data set, and parent child relationships are found, so that the domain subject tree is constructed, storing of the domain subject tree is achieved, and learning and using of the user are convenient.